diff --git a/theme/list_lib.js b/theme/list_lib.js
index 2b5931dab..7204746b8 100644
--- a/theme/list_lib.js
+++ b/theme/list_lib.js
@@ -1054,7 +1054,7 @@ function unshowDiveDetails(dive)
 
 function nextDetailedDive()
 {
-	if (dive_id < items.length) {
+	if (dive_id < items.length - 1) {
 		showDiveDetails(++dive_id);
 	}
 }